10. Suppose that in truth marijuana usage does not impact Perceived Stress Scale scores. Which of the following statements is true about this regression analysis? a. A regression assumption was violated. b. A Type I Error was made. c. A Type II Error was made. d. Either a Type I or Type II Error were made. e. No hypothesis testing error was made.Questions 7-10. Suppose you are interested in studying the effectiveness of recreational marijuana usage to reduce stress. To do this, you collect a random sample of Ann Arbor residents and ask if they use recreational marijuana and measure perceived stress using the numerical Perceived Stress Scale (PSS), a common psychological instrument for measuring the perception of stress. Lower PSS scores indicate less stressed individuals. The data for your random sample is summarized below. Perceived Stress Scale (PSS) Recreational Marijuana N Median Mean Standard Deviation Users 63 14.8 15.6 7.1 Non-users 357 15.9 16.3 7.4 Let M/ be an indicator variable for recreational marijuana usage, such that M/ = 1 ifan individual uses marijuana recreationally and MJ = 0 if they do not. Suppose the following model is fit to these data: E [PSS] = Bo + B1 x MJ